Laboratory Diaphragm Pumps for Air Gases Liquids

New! Continuous-Cleaning Vacuum Systems Laboratory Diaphragm Pumps for Air Gases Liquids oil-free, dry running corrosion-resistant materials contamination-free operation VACUUM SYSTEM SELECTION GUIDE for blotting filtration gel dryers rotary evaporators vacuum concentrators solid phase extraction

Automatic Vacuum Pumping Systems Maintain precise control of the distillation process KNF s vacuum pump controller uses advance microprocessor features and offers you complete control over the evaporative process. It maintains system vacuum precisely to within ±0.2% for the duration of your process. It prevents foaming and boiling, by venting instantly with the touch of a button. With five memory registers, it stores separate vacuum level and hysteresis settings for multiple processes, solvents or even individual users. Bright red LED digits are easy to read. Only premium, corrosion-resistant Kalrez resin, ceramic, and polypropylene materials are in contact with the gas stream. There are no stainless steel components to fail from pitting or corrosion. This controller may be purchased as a complete vacuum system featuring a LABOPORT vacuum pump and convenient, sturdy alloy stand to facilitate transportation within the lab. User friendly features - Because we listened to valuable feedback from users like yourself, the PU842 controller is very simple to use. Choose among any of five programmable vacuum and hysteresis memory settings, and adjust them even while the pump is running. The instant purge and vent functions prevent foaming and boiling with the touch of a button. Push-on hose barbs connect quickly; no special wrenches are needed. It s designed to be virtually maintenance-free. Cleaning of wetted parts, if it becomes necessary, can be accomplished in minutes using simple tools, as all is accessible from outside the cabinet. A versatile vacuum system - A complete system includes a dry, oil-free LABOPORT vacuum pump and the programmable controller, mounted on the alloy stand. These systems feature quality KNF LABOPORT pumps, built tough, with heads made of solid Teflon resin, and patented structured diaphragm plus exclusive multi-port Kalrez valves. They will provide you with years of trouble-free performance. Models are available to 1.5 Torr end vacuum and flow capacities to 60 L/min. Vacuum controller technical specifications Weight 1.4 kg (3 lbs.) Hose Connectors 3 /8 in. ID hose barbs Display Units mm Hg (Torr) or mbar Setpoint Range Atm. - 1 Torr (1 mbar) Hysteresis Range Atm. - 1 Torr (1 mbar) Accuracy ±0.2% of scale Overall Size: L x W x H 19 x 14 x 7 cm. 7.5 x 5.5 x 2.75 in. Power Requirements 115 VAC 60 Hz only System selection chart Cap. System Pump Head Wetted Materials Vacuum Pressure Dimensions Shipping Vacuum pump controller (less pump and alloy stand) PU842 Controller Only Polypropylene/Kalrez 19 x 14 x 7 1.4 Complete vacuum system (includes controller, LABOPORT pump and alloy stand) 20 PU843-N820.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 33 x 20 x 41 15 34 PU844-N840.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 33 x 20 x 41 18 34 PU845-N842.3FTP Two Stage Teflon /Kalrez Teflon 1.5 (29.86) 15 33 x 20 x 41 18 LABOXACT Manual Vacuum Pumping Systems Economical control of vacuum levels for evaporators The LABOXACT manual vacuum control system is ideally suited for less critical applications. It includes a continuously-adjustable vacuum valve, a safety-vent purge valve with purge gas inlet port, accurate digital vacuum gauge and a premium LABOPORT pump featuring heads of solid Teflon resin. The system is factory-mounted directly on a standard pump, is simple to adjust, and provides reliable manual control of your vacuum process. System selection chart Pump System Pump Head Wetted Pump Materials Vacuum Pressure Dimensions Shipping L/min. Number/Pump Configuration Head/Valves/Diaphragm Torr ( Hg) psig L X W X H cm Wt. kg Complete vacuum system (includes vacuum valves, digital gauge and specified LABOPORT pump. Not available separately.) 20 PU1334-N820FTP Single Stage Teflon /Kalrez Teflon 75 (27) 15 40 x 22 x 28 10 20 PU1335-N820.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 40 x 22 x 28 10 34 PU1336-N840FTP Single Stage Teflon /Kalrez Teflon 75 (27) 15 41 x 22 x 30 13 34 PU1337-N840.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 41 x 22 x 30 13 Available in 230V/50Hz. Specifications are subject to change without notice. You should always check corrosion-resistance charts for compatibility with the chemicals used in your laboratory.

LABOPORT Vacuum Pumps For rotary evaporation, vacuum ovens and distillation Consider a KNF LABOPORT pump for quiet, reliable operation without the messy handling of pump oil, or the expense of water aspirators. They are the perfect replacement for rotary vane pumps in applications where a variety of corrosive vapors are encountered. Equipped with patented, sturdy Kalrez multi-port valves, these pumps tolerate ingestion of occasional liquids without damaging or degrading performance. The thick, solid Teflon resin heads will not peel or corrode when exposed to most solvents. As these portable pumps are not explosion-proof, applicable codes pertaining to proper laboratory ventilation and solvent disposal should be adhered to, especially when processing potentially toxic and/or combustible liquids and vapors. Placing a cold trap prior to the pump will help to optimize the rate of evaporation, and reduce the amount of condensable vapors that enter the pump, extending diaphragm life. Selection chart for rotary evaporation and distillation For sample vessels <10 Liters Distillation of high BP solvents (>110 C) Chlorobenzene, DMF, DMSO, isoamyl alcohol, xylene 34 N842.3FTP Two Stage Teflon /Kalrez Teflon 1.5 (29.86) 15 33 x 17 x 22 12.2 Reflux reactions/distillation of high BP solvents (80-110 C) Water, heptane, isobutyl alcohol, toluene 34 N842.3FTP Two Stage Teflon /Kalrez Teflon 1.5 (29.86) 15 33 x 17 x 22 12.2 34 N840.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 33 x 17 x 22 12.2 Distillation of medium BP solvents (60-80 C) Acetonitrile, benzene, chloroform, ethanol, ethyl acetate, hexane, methanol 20 N820.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 32 x 16 x 20 9.5 34 N840.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 33 x 17 x 22 12.2 Distillation of low BP solvents (35-60 C) Acetone, methylene chloride, pentane KNF recommends the PU842 vacuum pump controller for use with these pumps to avoid solvent bumping. 10 N810.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 28 x 14 x 19 7.2 20 N820FTP Single Stage Teflon /Kalrez Teflon 75 (27) 15 32 x 16 x 20 9.5 20 N820.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 32 x 16 x 20 9.5 34 N840FTP Single Stage Teflon /Kalrez Teflon 75 (27) 15 33 x 17 x 22 12.2 34 N840.3FTP Two Stage Teflon /Kalrez Teflon 6 (29.7) 15 33 x 17 x 22 12.2 For sample vessels >10 Liters 60 N860.3FT.40P Two Stage PowerDry Teflon /Kalrez 3 (29.8) 15 33 x 29 x 28 14.3 65 N840.1.2FTP Parallel Head Teflon /Kalrez 68 (27.3) 15 33 x 17 x 22 12.2 For applications involving a high volume of condensable vapors, consider pumps equipped with the PowerDry - Self Cleaning pump option. Selection chart for gel drying, vacuum concentration, vacuum ovens Gel drying - use with a KNF dry ice trap 20 N820.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 7.5 (29.6) 15 32 x 16 x 20 9.6 Vacuum concentration - use with a KNF dry ice trap 34 N840.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 7.5 (29.6) 15 33 x 17 x 22 12.9 Large scale vacuum concentration 60 N860.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 3 (29.8) 15 33 x 29 x 28 14.8 Small vacuum ovens - chamber capacity <15 liters; use with a KNF dry ice trap 20 N820.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 7.5 (29.6) 15 32 x 16 x 20 9.6 Medium vacuum ovens - chamber capacity 15-30 liters; use with a KNF dry ice trap 34 N840.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 7.5 (29.6) 15 33 x 17 x 22 12.9 34 N842.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 3 (29.8) 15 33 x 17 x 22 13.7 Large vacuum ovens - chamber capacity >30 liters; use with a KNF dry ice trap 60 N860.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 3 (29.8) 15 33 x 29 x 28 14.8 Available in 230V/50Hz. Specifications are subject to change without notice. You should always check corrosion-resistance charts for compatibility with the chemicals used in your laboratory.

PowerDry Continuous-Cleaning Vacuum Systems LABOPORT pumps just got better with KNF s innovative solution to the problem of liquids accumulating inside the pump. These liquids usually collect when pumping saturated vapors, as encountered with vacuum ovens or rotary evaporators. Unless occasionally removed from the pump, they increase processing time, reducing pump efficiency and life. KNF s new, patent-pending PowerDry system cycles automatically every few minutes, removing accumulated moisture instantly without disturbing your vacuum process. How it Works - See diagram below. The PowerDry system instantly removes accumulated condensate from the pump and restores efficiency while the pump is operating. During the PowerDry cycle, an internal valve energizes and admits a burst of ambient air directly into the first stage. The resulting high pressure ratio instantly closes the pump s inlet valve, preserving the vacuum level within the evacuated chamber. The purge air moves through the pump at a high speed, forcing accumulated condensate out through the exhaust port. The drying operation is precisely controlled by an adjustable electronic timer. Three individual timing cycles are used while the pump is running; initial pump down time, drying cycle duration, and the interval between drying cycles. Corrosion-resistant - KNF LABOPORT pumps feature premium Teflon and Kalrez resins in contact with the gas stream. There are no coated-metal parts to pit or corrode. KNF s innovative molded structural diaphragm and multiport valve system ensure reliable vacuum performance. Technical specifications Dryer Controller Adjustable, 3 cycle electronic timer Wetted Materials Teflon and Kalrez Pumpdown Cycle 13 to 360 seconds Pump Type Oil-Free diaphragm Drying Cycle 1 to 10 seconds No. of Stages Two-stages Repeat Cycle 10 to 900 seconds Port Fittings 3 /8 hose barbs PowerDry pump selection chart L/min. Number Configuration Head/Valves/Diaphragm Torr ( Hg) psig L x W X H cm Wt. kg 20 N820.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 7.5 (29.6) 15 32 x 16 x 20 9.6 34 N840.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 7.5 (29.6) 15 33 x 17 x 22 12.9 34 N842.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 3 (29.8) 15 33 x 17 x 22 13.7 60 N860.3FT.40P Two Stage PowerDry Teflon /Kalrez Teflon 3 (29.8) 15 33 x 29 x 28 14.8 Fig. A. Liquids tend to accumulate within a pump head while handling saturated vapors. During the pump s PowerDry cycle, as shown in Fig. B, a high-speed purge valve energizes, admitting a burst of air into the pump s first stage. Because of the high pressure ratio, the pump s inlet check valve instantly closes, preserving your vessel s vacuum level. The purge air moves through the pump s heads at a high speed, propelling the accumulated liquids out the exhaust port, leaving your pump clean and dry. KNF recommends that a container be connected to the exhaust port of the pump to collect expelled liquids.

LABOPORT Mini Pumps and Compressors For vacuum filtration, blotting, degassing, dessication These convenient KNF pumps are lightweight and easy to use for your flask filtration, vacuum manifold and vacuum blotting applications. They feature premium, corrosionresistant Ryton, Teflon and Kalrez resins. There are no metal wetted parts within the pump heads. They are fitted with KNF s patented, multi-port valve design for increased performance and tolerance of occasional liquids drawn into the system. An optional high-quality, smoothly-dampened brass vacuum or pressure gauge exhibits minimal needle bounce, and a convenient bleeder valve provides fine adjustment. Selection chart for filtration, blotting, solid phase extraction L/min. Number Configuration Head/Valves/Diaphragm Torr ( Hg) psig L x W X H cm Wt. kg Flask filtration - pump only 5.5 N86KTP Single Stage Ryton /Kalrez /Teflon 120 (25.2) 35 18 x 9 x 15 1.9 11.5 N811KTP Single Stage Ryton /Kalrez /Teflon 218 (21.3) 35 20 x 9 x 17 2.5 13 MPU953 Single Stage Ryton /Viton /Teflon 75 (27) 15 20 x 9 x 17 2.5 ` 16 N816.3KTP Two Stage Ryton /Kalrez /Teflon 15 (29.3) 7.4 36 x 14 x 9 4.0 30 N816.1.2KTP Parallel Head Ryton /Kalrez /Teflon 120 (25.2) 7.4 36 x 14 x 9 4.0 Vacuum filtration, blotting, degassing, dessication, aspiration, solid-phase extraction - with vacuum gauge and bleeder valve 5.5 PU837 Single Stage Ryton /Kalrez /Teflon 120 (25.2) 35 18 x 9 x 15 2.0 13 PU839 Single Stage Ryton /Viton /Teflon 75 (27) 15 20 x 9 x 17 2.6 Pressure filtration - with pressure gauge and bleeder valve 5.5 PU838 Single Stage Ryton /Kalrez /Teflon 120 (25.2) 35 18 x 9 x 15 2.0 11.5 PU840 Single Stage Ryton /Kalrez /Teflon 218 (21.3) 35 20 x 9 x 17 2.6 Vacuum Pumps and Compressors Economical solid Teflon resin or 316 stainless steel heads The FT pumps listed below are an excellent companion for most laboratory appliances requiring a dry, oil-free vacuum source. Use them with your gel dryer, rotary evaporator, distillation processor and vacuum filtration device. Built from premium corrosion-resistant Teflon and Kalrez resins, these pumps handle the harshest gases and vapors* found in the laboratory. The ST models are excellent for higher pressure or flow applications such as gas transfer or circulation. They feature machined 316 stainless steel heads, a diaphragm coated with Teflon resin, and valves of Teflon resin for handling tough corrosive vapors.* Vacuum pumps with solid Teflon resin heads 17 N726FTP Single Stage Teflon /Kalrez /Teflon 50 (28) 20 20 x 11 x 18 4.8 17 N726.3FTP Two Stage Teflon /Kalrez /Teflon 10 (29.5) - 25 x 20 x 18 6.8 30 N726.1.2FTP Parallel Head Teflon /Kalrez /Teflon 50 (28) 20 25 x 20 x 18 6.8 Vacuum pumps & compressors with 316 stainless steel heads 29.3 N035STP Single Stage 316SS/Teflon /Teflon 70 (27) 60 26 x 15 x 20 12.5 29.3 N035.3STP Two Stage 316SS/Teflon /Teflon 10 (29.5) - 31 x 25 x 20 17 56 N035.1.2STP Parallel Head 316SS/Teflon /Teflon 70 (27) 60 31 x 25 x 20 17 *You should always check corrosion-resistance charts for compatibility with the chemicals used in your laboratory. Teflon is a registered trademark of DuPont. Kalrez is a registered trademark of DuPont Dow. LABOPORT is a registered trademark of KNF Neuberger GmbH. Specifications are subject to change without notice. Above pumps available in 115V/60Hz and 230V/50Hz. About KNF Neuberger KNF Neuberger, Inc., based in the Trenton, NJ area since 1977, designs and manufactures standard and custom-tailored air, gas and liquid diaphragm pumps. The company's broad range of products support a wide variety of applications, both as a vital part of a larger OEM (Original Equipment Manufacturer) system or as a stand-alone laboratory unit. KNF is a pioneer in the use of Teflon for pumps that handle aggressive gases/liquids, holds over 200 patents and is clearly the world leader in diaphragm pump innovation. For the research laboratory, KNF introduced the innovative and popular LABOPORT line of solid Teflon pumps. KNF Neuberger is part of a multinational corporation, established shortly after World War II and headquartered in Germany's Black Forest region. With a worldwide group of 12 wholly-owned subsidiaries in Europe, America and Asia and two R&D centers, KNF offers the true depth of capability needed to solve today's and tomorrow's design challenges.

FLODOS Liquid Diaphragm Pumps For dosing or transfer of corrosive liquids KNF s liquid diaphragm pumps are a convenient way to dose or transfer liquids in the laboratory. The pumps are self-priming and maintenance-free and will operate dry indefinitely without damage. Models are available featuring premium, corrosion-resistant PVDF and PTFE resins. There are no metal wetted parts to corrode nor any troublesome peristaltic tubing to break or fatigue. The flow rate is adjustable within the range specified in the selection chart. Hard-walled tubing is suggested for maximum adjustment effectiveness. Selection chart Cap. Model Maximum Dimensions Barbed Shipping L/min. Number Pressure Head L X W X H cm Connections Wt. kg Standard pressure pumps 0.5-1.0 ND100 15 psig / 33 ft. H 2 0 / 3 mwg 18 x 18 x 8.5 8 mm ID 2.4 1.0-3.0 ND300 15 psig / 33 ft. H 2 0 / 3 mwg 22 x 21 x 10.5 12 mm ID 2.8 High pressure pumps 0.9-1.4 ND1.100 60 psig / 130 ft. H 2 0 / 40 mwg 18 x 18 x 8.5 8 mm ID 2.4 1.0-3.0 ND1.300 60 psig / 130 ft. H 2 0 / 40 mwg 22 x 21 x 10.5 12 mm ID 2.8 Technical specifications (all models) Maximum Suction Head 9 in. Hg / 10 ft. H20 / 6 mwg Motor Type Shaded pole AC, Thermal reset STEPDOS Programmable Liquid Metering Pumps Consider a KNF STEPDOS liquid metering pump for quiet, precision metering without the inconvenience of tubing maintenance or failure. They are the perfect replacement for peristaltic tubing pumps in the lab, and can be used where a variety of neutral or corrosive liquids are encountered. These pumps use premium, corrosion-resistant wetted parts that are designed to last. They are virtually maintenance-free. Even the drip proof case will withstand the harshest lab environments. The microprocessorcontrols feature exceptional operating flexibility and are described below for each model. The RC models are supplied with cables and Windows TM software for remote access to all functions of the pump from a personal computer. The S models are controlled by the on-board touch pad. KNF NEUBERGER, INC. Two Black Forest Road Trenton, NJ 08691-1810 Voice: 609/890-8600 Fax: 609/890-8323 www.knf.com pumps@knf.com Ambient Temperature Range +5 to +40 C Medium Temperature Range +5 to +80 C Materials of Construction KT model - PP/PTFE/Viton /PA, TT model - PTFE/PVDF Standard continuous performance ratings listed above are per head and are based on technical data and test results of nominal units at sea level with water at 70 F (21 C) and nominal electrical supply. Dimensions and performance characteristics given are for reference only. Specifications and prices are subject to change without notice. Viton is a registered trademark of DuPont Dow. Technical specifications STEPDOS 03 STEPDOS 08 Flowrate 0.03 to 30 ml/min. (0.0005 to 0.48 GPH) Max Pressure 90 psig, 195 ft H 2 0, 60 mwg Suction 13 ft H 2 0, 12 in. Hg, 4 mwg Accuracy ±2% accuracy Keypad Start/Enter, Stop/Esc, Prime Drain, Program, Up, Down Dispense Modes Metering by volume: 30µl to 180 l Metering by time: 0.34 seconds to 100 hours Repeatable metering: 1 to 65,000 times with adjustable pause time up to 24 hours Wetted Materials Flowrate 0.08 to 80 ml/min. (0.013 to 1.28 GPH) Max Pressure 30 psig, 66 ft H 2 0, 20 mwg Suction 13 ft H 2 0, 12 in. Hg, 4 mwg Accuracy ±2% accuracy Keypad Start, Enter/Stop, Prime Drain, Program, Up, Down Dispense Modes Number of Strokes: 7-30,000 Time/Stroke: 0.36 sec to 5 min, 27 sec. Pause: 0-100 hours Environmental/Mechanical (All models) Ambient Temp: +5 to +40 C (+47 to +104 F) Medium Temp: +5 to +80 C (+47 to +176 F) Model STEPDOS03KT, 08KT STEPDOS03TT, 08TT STEPDOS03ST (only) Head PP PVDF 316 Stainless Diaphragm PTFE PTFE PTFE Valves FFPM FFPM FFPM Cabinet: IP65 Drip proof construction Physical: 18 cm L x 11.5 cm W x 8 cm H, 1.5 kg (3 lbs.) CE Mark: EN 61010/EN 55011 Connectors: 1 / 4 28 UNF(F), Hose OD: 1 / 8-1 / 32 (1.5-3 mm) Control Input/Output Ports (All RC models) Power: 100 230 VAC, 50 60 Hz, 14 Watts Analog input: 0-20 ma, 4-20 ma, 0-10 VDC Sensor input: open contacts (2), 5 VDC Alarm output: NO or NC relay contacts SECTION 10.60 web (0602)